Adjustable belt loop fastening device



FIG. 1 is a top perspective view of the new design for an adjustable belt loop fastening device;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a right side view thereof, with the left side being a mirror image of the right side;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a perspective view thereof, shown in a closed configuration in a position of use on two belt loops.

The broken lines in the drawings depict environment that forms no part of the claimed design. 

CLAIM The ornamental design for an adjustable belt loop fastening device, as shown and described. 